Since I read the 1950's era Popular Mechanics books my dad has had since I was born, there have been $StarTrekTech battery prototypes that totally change the ba

Since I read the 1950's era Popular Mechanics books my dad has had since I was born, there have been $StarTrekTech battery prototypes that totally change the battery paradigm and just need to get turned into a product. Then they fade away, never to be heard from again. I'm not sure we will ever(in 20 years or so) invent a new battery technology that is not just a refinement of existing technologies. Convince/prove me wrong?